Radiator shutter



Jan. 25 1927.

1,615,781 \W. A. ALLEN RADIATOR SHUTTER Filed June 20, 1923 HHHHHH JIM" I v c LP: I) M O O O INVENTOR WILL/HIV] Ki. LLT/V Jrwrm M ATTORNEY Patented Jan. 25, 1927.

UNlTED STATES 1 1,615,781 PATENT, OFFICE.

WILLIAM A. ALLEN, F YONKERS, NEW YORK, ASSIGNOR TO THE ALLEN AUTO SPE- CIALTY COMPANY, OF NEW YORK, N. Y., A CORZOBATION OF NEW] YORK.

RADIATOR SHUTTER.

Application filed June 20, 1923.

My invention relates to shutters, and particularly to shutters for automobile radiators. The object of my invention is to provide a shutter of simple and efficient conl struction adapted for application to laterally arranged fan-cooled radiators for explosion engines of certain well known types.

In the accompanying drawings Fig. 1 is a broken end elevation of the fly wheel chamber and radiator system of an engine having a lateral radiator of the fancooled type, to which a shutter embodying my invention in one form is applied;

Fig. 2 is a broken plan view thereof;

Fig. 3 is a perspective of the shutter drawn to a larger scale; and

Fig. 4 is a broken section tl'ierethrough.

In certain automobile constructions the water of the engine jacket is cooled by pass- 30 ing the same through vertical tube groups 15 and 16 arranged in air ducts 17 and 18 on opposite sides of the fly wheel chamber 19. The tube groups are connected to bottom and top headers 20 and 21, respectively,

which in turn are bolted to flanges 22 and 23 on the bottom and tank castings 24 and 25. On the engine crank shaft 26 is a blower 27 surrounded by an air duct 28 which delivers to the ducts 17 and 18 in which the tube groups 15 and 16 are arranged. The ducts 17 are ordinarily open on one side to permit the air from the fan to escape. The present invention provides a simple and effective shutter for controlling the flow of air through the ducts.

For this purpose I provide a sheet metal frame 29 having a large central aperture 30 which registers with the side opening of the duct 17. Top and bottom flanges 31 and 82 projecting outwardly from the frame 29, are pierced at 83 and 34 in register with the flanges of the headers 20 and 21 and the flanges 22 and 23 of the tank castings to receive the bolts 35 and 36 by which these parts are united. Struck outward from the top and bottom margins of the aperture 30 of the shutter frame 29 are flanges 37 and 38 which pivot-ally support the several shutter slats 39 which are vertically arranged with respect to the opening 30. The slats 39 are preferably of sheet metal and have offset at their opposite ends pivot lugs 40 pierced by rivets 41 passing through the top and bottom flanges and on which the shutters swing. The lugs 40 at the upper ends of the slats Serial No. 646,540.

are also connected by rivets to a slide bar 42, which passes beneath the flange 37 at the top of the opening 30 in the frame and is connected at 43 to a screw rod 44 by which the bar is shifted transversely of the slat group to swing the slats to open or closed position. At one end of the flange 37 is an ripstanding lug 45 to which one end of the return spring 46 is anchored, the other end of the spring being engaged by a pin 47 on the slide bar 42, the pin passing through an arcuate slot 48 in the flange 37.

The screw rod 44 may conveniently pass through the eye 49 of a screw bolt 50 mounted at any convenient point in the engine easing adjacent the radiator. On the screw rod 44 is the thumb nut 51 which abuts against the eye 49, and by which the rod 44 may be displaced against the action of the return spring 46.

If desired the sides of the frame 29 may be provided with flanges 52 which complete the lateral closure of the shutter casing when the slats 39 are moved to closed position by the return spring 46.

The construction is extremely simple and rugged. and has the advantage of being mountable at the radiator opening without any other appliance than the bolts which are now used to secure the radiator headers 'to the tank castings. If the bolts are properly arranged it is only necessary to remove the nuts, slip the projecting ends of the bolts through the holes in the top and bottom flanges of the radiator frame, and again apply the nuts in order to secure the shutter in position. The screw eye abutment for the shutter actuating bar may be secured in a hole drilled at some convenient point in the engine casing. f a side flange for the radiator frame is employed, this may constitute. the abutment for the thumb nut.

Of course the shutters may be arranged on a horizontal axis if preferred, the position of the associated parts being correspondingly rearranged. Various other modifications will readily occur to those skilled in the art which do not depart from what I claim as my invention.

1 claim 1. The combination with a radiator and an air duct encasing the radiator but open at. one side, of a shutter for said opening, said shutter comprising a sheet metal frame having marginal flanges pierced in register with 110 radiator securing bolts, said frame being apertured in register with the open side of the air duct and having outwardly extending flanges, shutter slats pivoted in the latter, and means for actuating said shutters to open or close the opening in the shutter frame 2. The combination with a vertically arranged air duct for the radiator of an explosion engine, said duct being open on one side and having offset flanges at top and bottom for the reeeption of securing bolts, of a shutter for the open face of said air duct comprising a plate-like sheet metal body having offset top and bottom flanges adapted to be received between the top and bottom flanges of the air duct and iierced in reg ister with the bolt holes of said duct flanges to accommodate securing bolts therefor said plate-like casing being apertnred and having flanges arranged at opposite sides of said aperture, shutters pivoted in the latter, and means for moving the said shutters into open or closed position.

3. An automobile shutter for a radiator having air ducts open at the side, said shutter comprising a sheet metal frame offset at its upper and lower ends to form securing flanges faced outward away from the radiator and pierced to accommodate securing bolts, said frame being apertured and having flanges offset from opposite margins of the aperture in the same direction as said securing flanges, shutter slats pivoted in said flanges at the aperture margins, and means to operate said slats to open or close said aperture in the frame.

In testimony whereof I have signed my name to this specification.

WILLIAM A. ALLEN 

